Chicago
The tables below display average monthly climate and weather indicators in Chicago Illinois.
Temperature by: Fahrenheit / Centigrade
Chicago Temperature |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
Avg. Temperature | 21.0 | 25.4 | 37.2 | 48.6 | 58.9 | 68.6 | 73.2 | 71.7 | 64.4 | 52.8 | 40.0 | 26.6 | 49.0 |
Avg. Max Temperature | 29.0 | 33.5 | 45.8 | 58.6 | 70.1 | 79.6 | 83.7 | 81.8 | 74.8 | 63.3 | 48.4 | 34.0 | 58.6 |
Avg. Min Temperature | 12.9 | 17.2 | 28.5 | 38.6 | 47.7 | 57.5 | 62.6 | 61.6 | 53.9 | 42.2 | 31.6 | 19.1 | 39.5 |
Days with Max Temp of 90 F or Higher | 0.0 | 0.0 | 0.0 | < 0.5 | 1.0 | 4.0 | 6.0 | 4.0 | 2.0 | < 0.5 | 0.0 | 0.0 | 17.0 |
Days with Min Temp Below Freezing | 29.0 | 25.0 | 21.0 | 8.0 | 1.0 | 0.0 | 0.0 | 0.0 | < 0.5 | 5.0 | 17.0 | 26.0 | 131 |
|
|
Chicago Heating and Cooling |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
Heating Degree Days | 1364 | 1109 | 862 | 492 | 235 | 35.0 | 5.0 | 19.0 | 84.0 | 391 | 750 | 1190 | 6536 |
Cooling Degree Days | 0.0 | 0.0 | 0.0 | 0.0 | 46.0 | 143 | 259 | 226 | 66.0 | 12.0 | 0.0 | 0.0 | 752 |
|
|
Chicago Precipitation |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
Precipitation (inches) | 1.5 | 1.4 | 2.7 | 3.6 | 3.3 | 3.8 | 3.7 | 4.2 | 3.8 | 2.4 | 2.9 | 2.5 | 35.8 |
Days with Precipitation 0.01 inch or More | 11.0 | 9.0 | 12.0 | 13.0 | 11.0 | 10.0 | 10.0 | 9.0 | 9.0 | 9.0 | 11.0 | 11.0 | 125 |
Monthly Snowfall (inches) | 10.7 | 8.2 | 6.6 | 1.6 | 0.1 | < 0.05 | < 0.05 | < 0.05 | < 0.05 | 0.4 | 1.9 | 8.1 | 37.6 |
|
|
Other Chicago Weather Indicators |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
Average Wind Speed | 11.7 | 11.4 | 11.9 | 11.9 | 10.5 | 9.3 | 8.4 | 8.2 | 8.9 | 10.1 | 11.2 | 11.0 | 10.4 |
Clear Days | 7.0 | 6.0 | 5.0 | 6.0 | 7.0 | 7.0 | 8.0 | 9.0 | 9.0 | 9.0 | 5.0 | 6.0 | 84.0 |
Partly Cloudy Days | 6.0 | 6.0 | 8.0 | 8.0 | 10.0 | 11.0 | 12.0 | 11.0 | 10.0 | 9.0 | 6.0 | 6.0 | 105 |
Cloudy Days | 18.0 | 16.0 | 18.0 | 16.0 | 14.0 | 11.0 | 10.0 | 11.0 | 11.0 | 14.0 | 18.0 | 19.0 | 176 |
Percent of Possible Sunshine | 44.0 | 49.0 | 51.0 | 50.0 | 58.0 | 67.0 | 66.0 | 62.0 | 59.0 | 55.0 | 38.0 | 43.0 | 54.0 |
Avg. Relative Humidity | 59.0 | 73.5 | 73.0 | 69.5 | 66.5 | 66.5 | 69.0 | 71.5 | 71.5 | 70.0 | 69.0 | 73.0 | 75.0 |
Weather information for other cities in Illinois